Cholesterol Metabolism | MCQs

Explanation

Cholesterol is present in all of the following except Egg White. 

While both milk and fish contain cholesterol, the cholesterol in an egg is solely located in the yolk, meaning egg white has no cholesterol. 

Key points:

Egg white: Contains no cholesterol

Egg yolk: Contains all the cholesterol in an egg

Explanation

Cholesterol is a vital precursor in the biosynthesis of:

Vitamin D:

• Cholesterol converts to 7-dehydrocholesterol in the skin, which forms vitamin D₃ under UV light.

Steroid Hormones:

Cholesterol is the backbone for:

• Sex hormones (testosterone, estrogen, progesterone).
• Adrenal hormones (cortisol, aldosterone).